I think you have most of it. You might be surprised - I bought a 7600 that had very little use, but had sat for 3 years. I was able to get it back with no problem.
I think it will partially depend on the usage and wear on what you have to replace?
I started with some old carts. I mixed the Paul Roark Carbon 6 base - glycerin, distilled water, and Photo Flo. I mixed up a fresh batch with hot water. It is basically what InkSupply.com sells as Gloss Optimizer.http://www.paulroark.com/BW-Info/Ink-Mixing.pdf
Then I added ammonia and rubbing alcohol - I don't remember the proportions. I ran 4-5 "Init"fills, which fully empties the lines each time. Then ran the inks and I was fine! Empty the maintenance tank, fill with paper towels or similar, and reset the maintenance tank internally.
Of course you don't know exactly what you have until you try the inks. You could add some dye and try a nozzle check on a porous paper if you want. I would do that after loading the ink the first time and not getting a clean check, rather than having to load ink,, check, rerun cleaning fluid, etc.
I set up a proofing system 4 years ago using the OCP Claria Match dye inks with the premium quality Cyan. R-Jet Tek is the USA reseller. Of course the Cyan - which is the problem ink - isn't quite up to Claria standards. But sometimes we obsess about 100 year longevity for throw away prints! http://www.resetters.ru/download/Claria.pdfhttp://www.rjettek.com/
It is GREAT to be able to proof at 24" x 30" or larger for a few pennies worth of ink. I set that up when I was shooting 4x5. 24"x30" was my default proof size for a 4x5 scan that I thought would eventually be a larger print. The aesthetic of a large print is so different from a small one that I couldn't accurately judge using smaller prints. All of my output is intended as large prints, so I also proof my digital files at around 180 dpi native resolution, 18"x27" to 24" x 36". (I have the Nikon D800E on order.)
I have been proofing on Epson Semi-Gloss170 weight, I stocked up on that at when Epson had a buy 2, get 1 sale. I honestly prefer my OCP dye ink prints over my Epson Ultrachrome prints. I think we abandoned dye a bit too quickly; hopefully we will move back a bit with the Claria-type inks at more reasonable prices.
I just ordered a fresh batch of ink from R Jet Tek. The $121 total for 6 quarts of ink (see below) comes to $4.72 for a 220 ml cart, or $.0214 cents per ML. Be sure to get the C140-E Cyan, not the cheaper, regular Cyan.
I don’t know if I still have my OCP Profiles for the 7600. I think I lost them when I upgraded to Windows 7. If not I can make some new ones and share them if you like. It may be 2-3 weeks, I have some other things stacking up while I am working on taxes.
As I said, I am very happy with these inks, and I used to be about 99% against 3rd party inks. They fill a great niche for me. Even the Cone Color inks are 6x as expensive, at $123 for just 1 quart, or $28 per cart.
I bought refillable carts from InkSupply.com, but had about a 25% DOA failure rate. You might try the Cone (empty) refillable carts? I have also heard good thinks about the Lyson (empty) refillable carts.
Of course, I still have Epson Ultrachrome inks on another printer for final output. But this sytem saves me litterally thousnds of dollars when I am doing heavy proofing. The match is close enough that I don't move to Epson inks until the very last print.R-Jet Tek Order
BK140-E, OCP Ink EP T5844 BK, 32oz - $17.77
M140-E, OCP Ink EP T5846 M, 32oz - $21.28
Y140-E, OCP Ink EP T5846 Y, 32oz - $19.25
CL141-E, OCP Ink Epson T08 Lt Cyan , 32oz - $11.35
ML141-E, OCP Ink Epson T08 LM, 32oz - $11.77
C140-E, OCP Ink EP T5846 Cyan, 32oz - $25.87
Subtotal - $107.29
Shipping Cost (FedEx Ground®) - $14.25Total $121.54
Back to taxes now! More later when I can justify a break (known as procrastination.) Fun stuff!